Hotel staff no, but then I can't justify staying in Australian hotels, its cheaper for us to fly to south east Asia and rent a pool villa and even then in the vast majority of cases, tips have been refused. I have been chased out of restaurants, hotels and bars when leaving small money behind and that small money has been returned.
Different story now in tourist areas, Americans giving tips has now made it almost expected to tip, I suspect staff may have had wages cut in these areas.
Taxis? Don't catch them in australia,always use uber and no actual transaction takes place.
Restaurants? I can cook a far better meal onboard in most instances but if I do eat out and pay by card there is no facility here for tipping.
If paying cash I'll round up, but more as I don't want a pocket full of coin.
Most of my life in trade and service industry, never received or expected a tip.
Like I said, first world countries pay a proper wage.